assassinator

listen to the pronunciation of assassinator
الإنجليزية - الإنجليزية
{n} one who kills or attempts to kill by treachery, or secret assault
{i} one who murders, killer
a murderer (especially one who kills a prominent political figure) who kills by a treacherous surprise attack and often is hired to do the deed; "his assassins were hunted down like animals"; "assassinators of kings and emperors"
An assassin